Shuttle-throwing mechanism



C. H. STRALUCKE.

SHUTTLE THROWING MECHANISM.

I APPLICATION FILED MAYIL I921. 1,41 9,776, Patented June 13,1922.

2 SHEETS-SHEET I.

INVENTOR WITNESSES W W 64a. #5774; 061 5 A TTORNEYS UNH'E'EQ STATES CARL H. STRALUCKE,

OF NEW YORK, N. Y.

SHUTTLE-THROWING MECHANISM.

Application filed May 12,

To all whom it may concern Be it known that I. CARL H. STRALUCKE, a citizen of the United States, and a resident of the city of New York borough of Manhattan, in the county and State of New York, have invented a new and Improved Shuttle- Throwing Mechanism of which the following is a full, clear, and exact description.

This invention relates to looms and particularly to an improved shuttle throwing mechanism and has for an object to provide a construction which may be applied to various forms of looms now in common use without materially changing any part of the loom and permitting the usual throw arms to be dispensed with.

Another object of the invention is to provide a mechanism for looms which will throw the shuttle without the use of the ordinary picker arms.

A further object of the invention is to provide a throwing mechanism for shuttles operable automatically as the lay moves.

In'the accompanying drawings- 1 Figure 1 is a front view of one embodi ment of the invention showing the same applied to part of a loom.

Figure 2 is an enlarged view of one end of the structure shown in Figure 1, certain parts being broken away for better illustrating the detail features of the structure.

Figure 3 is a sectional view through Figure 2 on line 3-3.

Figure 4 is a fragmentary sectional view through Figure 2 on line Figure 5 is a fragmentary sectional view showing the detail arrangement of a clutch and associated parts forming certain features of the invention.

Referring to the accompanying drawings by numeral, 1 indicates part of the frame of a loom of any desired kind and 2 the lay thereof which is provided with the usual lay swords 3 associated with the rod 4 whereby the lay 2 is given its proper motion. The lay 2 is provided with a shuttle race 5 (Figure 3) saidshuttle race being of any usual or preferred kind. Connected to the frame 1 is'a-n arcshaped'rack 6 on each side, said rack beingheld rigid and co-acting with a pinion 7 which meshes therewith whereby the various moving parts are proper y operated as the lay moves back and forth, said mechanism including a pinion 7 being carried by the lay. As the mechanism on both sides of the machine is identical, the de- Specification of Letters Patent. Patented June 13 1921. Serial No. 468,910.

scription of one will apply to both. It will be noted that the pinion 7 is rigidly secured to a shaft 8 carried by a suitable journal box 9 which in turn is carried by a leg 10 of bracket 11. The leg 12 of bracket 11 is provided with a bearing box 13 for accommodating part of shaft 14 carrying the clutch face 15. journal boxes 1.6 and 17 carried by theirv respective brackets 18 and 19 secured tov the lay 2. A bevel gear 20 is rigidly secured to shaft 8 and continually meshes with a second bevel gear 21 which is provided with a spur gear 22 continually meshing with the rack 23 slidably mounted in suitable openings in the legs 10 and 12 of bracket 11. The bevel gear 24 also continually meshes with the bevel gear 21 but shaft 14 is rotated in only one direction by reason of the clutch member 15and the clutch member 26 carried by the bevel gear 24. For instance, as shown in Figure 2, when lay 2 is moving awayfrom the eye power will be transmitted to shaft 14 for rotating the same but when the lay moves toward the eye the clutch members 15 and 26 will slip and shaft 14 will remain stationary. A suitable spring 27 normally holds these clutch members into engagement but permits ready slipping thereof as desired. It is. of course, evident that any desired form of clutch may be used though in the drawing merely a conventional showing has been provided. As the spur gear 22 is continually meshing with the rack '3, said rack reciprocates each time the lay 2 moves namely, it moves to the left for its full stroke when the lay moves in one direction and moves back to the position shown in Figure 2 when the lay moves in the opposite direction.

A trigger 28 is pivotally mounted at 29 on the rack 23 and by reason of the cutaway portions 30 and 31 it is caused to strike the stop 32 when it moves to the left as shown Figure 2 but swinging back to a disengaged position under the action of the extension 33. When the end of the trigger strikes the adjustable stop 3,4,it will be moved to a vertical or operative position ready to engage the stop 32 whenever the picker 35 has been moved to the position shown in Figure 2. The adjustable stop 36 may be used to tilt the trigger 28 when said trigger has moved the stop 32, rod 37 and picker 35 as far as necessary. It will be noted that upon each movement of the shut- The shaft 14 is also journaled in tle, the lay 2 must move back and then forward, The rack 32 makes one complete back and forth reciprocation for each back and forth movement of the lay sothat the 5 rack 23' with its trigger 28 will make one idle movement while the mechanism on the other side of the machine is functioning. When the picker 35 is moved to the dotted position shown in Figure 2, an abutment 38 rigidly secured to the shaft 37 in the easing 39 will be moved to compress the spring 40. As soon as it reaches position, the toe 41 of lever 42 will move through the aperture 43 and. will act as a stop for preventing the return of the abutmentand parts connected therewith so that the picker 35 will remain in the dotted position shown in Figure 2 until the shuttle has engaged the bumper 44 and is ready to be thrown back again. The lever 42 is then automatically moved so that the toe 41 will move out of the way of the abutment 38 and spring 42 will quickly move rod 37, picker and associated parts back to the position shown in Figure 2. This will. throw the shuttle to the opposite side of the loom where the mechanism on that side will function and throw the shuttle back. This back. I and forth movement of the shuttle is, of 30 course, timed with the movement of the lay 2 as the spring and associated parts are caused to function by the movement of the loom through the action of pinion 7, rack 6 and connected parts. The lever 42 is pivotally mounted at 45 on the bracket 18 and is acted upon by spring 46 which continually tends to force the toe 41 through aperture 43. The end of the lever 42 opposite toe 41. is acted on by the lever 47 (Fi ure 4) which is acted upon by a cam 48 rigic ly secured to the shaft 14 whereby at the proper time said shaft and cam operate to move the toe 4], out of the way of abutment 38 and consequently release the picker. The various parts are, of course, timed properly so as to operate as just set forth. It will be noted that the mechanismof the loom is. changed but little though all of the old throwing mechanism is I dispensed with and the entire device secured to the lay 2 except the stationary rack 6 which causes theparts to operate as the lay is, moved by the usual mechanism of. the loom Incase it is a hand operated loom the movement of thelay manually will cause an automatic operation of the pickers though the device is intended primarily for power a operated looms, c

H 1, What Iclaiin is 1 1; In an attachment for a shuttle throwingmechanism for lays, a picker, a rod a predetermined connected to said picker, a spring acting on said rod for moving the rod and picker in one direction, a'rack,

a stop carried by said rod-,a trigger carried by said rack and adapted toengage said stop when the rack is moved in one direction for moving the rod and picker against the action of said spring, 'a catch for holding said spring compressed, means for actuating said rack, and means for disengaging said catch when the time has arrived for the picker to throw the shuttle whereupon said spring will quickly move said rod and picker arm for properly throwing the shuttle.

2. In an attachment for a shuttle throwing mechanism for lays, a picker, a sliding rod. secured to said picker for moving the same, means including a plurality of brack- V v ets for guiding said rod, a stop secured to said rod, a spring surrounding said rod and acting on said stop for resiliently urging the same in a given direction, a casing surrounding said spring, said casing having an opening therein, a pivotally mounted trigger adaptedto be inserted through said opening and move inwardly into the casing. a predetermined distance when said stop is moved past the opening for compressing the spring whereby return movement, and means for automatithe spring is held against cally releasing said trigger when the lay has reached a predetermined position where by the picker will be moved for throwing the shuttle. k i V 3. In a shuttle throwing mechanism for lays, a reciprocating rod carried by the lay of the loom, a picker arm carried by said rod, a spring for moving said picker arm und rod quickly'in one direction, a rack for moving said picker arm in the opposite direction, a pivotally mounted catch arranged on said rack, a projection arranged on said to compress said spring, a catch for bold ing said spring com-pressed, a train of gears for operating said rack, a pinion for actuating said train of gears,

by when "said lay is moved in the usual rod adapted to be engaged by said-catch when the rack is moved in such a direction a stationary rack I meshing with said pinion continually wheremanner said pinion will be rotated in one direction and when the lay is moved in the opposite direction the pinion will be reversed in its rotation whereby the rack is caused to;-be reciprocated by said train of gears, and means associated with one of the gears of said train acting as releasing means for the catch co-acting with the spring. I

CARL rLsTitALUcKE.v 

